Pivotal bar-lock with encased cylinder lock

ABSTRACT

A pivotal bar-lock comprising an anchor hasp having a locking hub and a first locking element integrally formed with a first mounting plate; a locking hasp integrally formed with a second mounting plate and having a mating element and a second locking element formed therein; and a locking bar rotatably mounted on the anchor hasp, the locking bar having a cylinder lock encased therein and an engagement element formed therewith, the cylinder lock being operable such that when rotated into an unlocked mode, the locking bar is pivotally enabled to assume one of open, in-transit, and closed positions in interaction with the first and second locking elements, and when the cylinder lock is rotated into a locked mode, the engagement element of the locking bar engages the mating element of the locking hasp.

FIELD OF THE INVENTION

The present invention relates generally to bar-locks, and moreparticularly to an encased bar-lock provided with a cylinder lockmounted on a pivotal bar, enabling barring and locking functions with ahigh degree of security against tampering and breakage.

BACKGROUND OF THE INVENTION

The bar-lock is a type of lock known for thousands of years. This typeof lock was in use in ancient walled cities, in which a large brace,typically a piece of timber wood, or an entire tree trunk, was placedagainst the width of a gate from the inside, the gate normally openinginward as shown in prior art FIG. 1A. In later prior art, a metal barwas placed in U-shaped or L-shaped anchor braces fastened to each sideof the gate posts to hold the bar firmly against the gate, thuspreventing the gate from opening, as shown in prior art FIG. 1B. Withadvances in technological developments, the locking function of thebar-lock was limited to locking stables, barns, sheds, and the like,where the brace locks the doors from the outside and prevents the exitof livestock from secure areas. Additional prior art designs of bar typelocks are shown in FIGS. 2-5.

A modern example of the prior art use of bar-locks is described in U.S.Pat. No. 4,548,058 to the present inventor, in which protected hasps aremounted alongside the opening of, for example, a double-door (see FIG.6) so as to mesh when the doors are closed, with a padlock body beinginserted within one opening in the hasps to join with a shackle insertedinto an opposing opening in the hasps and locked in place with a key.This is known as a protected hasp lock.

Protected hasp locks, such as that described, are inconvenient to use.This is because once the padlock is opened, the padlock body and shacklemust be stored until the lock is re-closed, and they may be misplacedand difficult to find. In addition, it is inconvenient and sometimesdifficult for a user to operate the prior art padlock with only one handfree, since it needs both hands in order hold the lock body at the sametime as using a key.

Therefore, it would be desirable to provide a lock having theadvantageous security features of the protected hasp lock, and thesimplicity of a bar-lock.

SUMMARY OF THE INVENTION

Accordingly, it is a principal object of the present invention toovercome the disadvantages associated with the prior art and to providea bar-lock having a cylinder lock, with the entire lock being encasedand fully protected from tampering or breakage by unauthorizedintrusion.

In accordance with a preferred embodiment of the present invention,there is provided a pivotal bar-lock comprising:

an anchor hasp comprising a locking hub and a first locking meansintegrally formed with a first mounting plate;

a locking hasp integrally formed with a second mounting plate and havinga mating element and a second locking means formed therein; and

a locking bar rotatably mounted on said anchor hasp, said locking barhaving a cylinder lock encased therein and an engagement means formedtherewith;

said cylinder lock being operable such that when rotated into anunlocked mode, said locking bar is pivotally enabled to assume one ofopen, in-transit, and closed positions in interaction with said firstand second locking means, and when said cylinder lock is rotated into alocked mode, said engagement means of said locking bar engages saidmating element of said locking hasp.

In an exemplary embodiment, the key-operated cylinder lock is mounted onthe locking bar of the bar-lock, and a locking cam operated by thecylinder lock engages a locking channel formed between the first andsecond mounting plates, enabling locking of the locking bar when closedon the locking hasp integrally formed on the second mounting plate, withthe locking bar being secured in place when the bar-lock is locked.

In the preferred embodiment, the cylinder lock and locking cam areentirely encased in a locking bar having an increased thickness andmass, to provide additional security. The locking bar is designed as anintegrally formed unit, without external openings except for a keyopening which is kept to a minimal size so as to discourage and preventtampering, drilling, and other attempts at forced intrusions, such aswith a crowbar, saw, wire cutter, drill or other similar implements.

A feature of the invention is that the locking bar is spring-loaded toestablish the open and closed positions, enabling the bar-lock to beoperated with one hand.

Another feature of the invention is that the locking hasp and the anchorhasp are laterally joined in the same plane by a tightening assembly todefine a mounting template for complete, accurate, safe and easyinstallation, using auxiliary, small diameter mounting screws to assistin the installation.

In one embodiment the first mounting plate of the anchor hasp and thesecond mounting plate of the locking hasp are co-planar.

In an alternative embodiment, the locking hasp has a mounting surfaceadditional to the second mounting plate, which is not co-planar with thesecond mounting plate, enabling mounting of the locking hasp on varioustypes of doors.

The bar-lock of the present invention is designed so that the anchorhasp is mounted with a single main, massive fastening means coincidentwith an axis defining the locking bar rotation, with the fastening meansbeing tamper-resistant.

An advantage of the present invention is that the entire locking barserves as a locking bolt.

In one embodiment of the present invention, the locking means is achannel having formed therein a first locking bay defined as a closedposition locking bay, and a second locking bay defined as an openposition locking bay, the first and second locking bays being disposedat opposing ends of the channel.

When the locking bar is pivoted to engage the mating element of thelocking hasp, the channel engages a locking cam in the closed positionlocking bay, locking the pivotal bar-lock.

When the locking bar is pivoted to disengage from the mating element andthe locking hasp, the channel engages the locking cam in the openposition locking bay, thus securing the locking bar in the openposition.

A feature of the invention is the design of the locking cam, which isformed with a partial circumferential collar, with the collar beingsupported on the cylinder lock, thereby eliminating forced-openingpressure acting on an internal mechanism associated with the cylinderlock.

An additional feature of the invention is that the collar is formed withat least one notch which engages a spring-loaded plunger, to define atleast one of the open, in-transit and closed positions.

Another additional feature of the invention is that the anchor hasp andlocking bare are integrally formed, respectively, with first and secondsets of connecting lugs which are rotatably interlocked in the open andclosed positions, preventing disassembly of the locking bar from theanchor hasp. The locking bar can be disassembled from the anchor haspfor maintenance purposes when the locking bar is the in-transit positionto enable clearance of the first and second connecting lugs.

Yet another additional feature of the invention is the provision of aspring to establish the open and closed positions of the locking bar,with the spring additionally assisting in maintaining the locking bar onthe anchor hasp, preventing its accidental removal until the spring isremoved for disassembly of the locking bar.

The present invention also features the provision of engagement means asa latch portion of the locking bar which is rotatable to engage saidmating element of the locking hasp in the closed position, with thecylinder lock being operable to lock it therein. The latch portion maybe designed to have a latching channel, to enable locking of slidingdoors.

Another feature of the present invention is the provision of an adaptermeans for mounting at least one of the anchor hasp and the locking hasp.The adapter means enables mounting of the pivotal bar-lock on glassdoors, aluminum frame doors, or mounting to a metal frame withoutfasteners.

Another feature of the invention is the ability to mount the anchor haspand locking hasp on at least one of a variety of door types and openingdirections, including reversible doors, single and double doors,swinging, sliding, folding, accordion-type, and rotating doors. Thedoors may be constructed from materials selected from at least one ofthe group of wood, plastic, metal, and glass.

Additional features and advantages of the present invention will becomeapparent from the following drawings and description.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the invention with regard to theembodiments thereof, reference is made to the accompanying drawings, notshown to scale, in which numerals designate corresponding elements orsections throughout, and in which:

FIG. 1A is a prior art illustration showing a fortified gate as seenfrom within a walled fort which is barred using a timber beam;

FIG. 1B is a prior art illustration showing double doors, which arelocked using a classic type bar-lock engaged between anchors attached tothe door frames;

FIG. 2 is a prior art illustration showing double doors, which arelocked using a shortened bar-lock engaged between anchors attached tothe doors themselves,

FIG. 3 is a prior art illustration showing double doors, which arelocked using a shortened bar-lock arranged to pivot on an axle attachedto one of the doors and engaged in an anchor attached to the seconddoor;

FIG. 4 is a prior art illustration showing double doors, which arelocked using a shortened, pivotal bar-lock as in FIG. 3, butadditionally secured by a conventional padlock;

FIG. 5 shows a prior art illustration of a single, right-hand doorlocked with a short pivotal bar secured in a bar keeper attached to adoor frame and locked with a padlock;

FIG. 6 is a prior art illustration showing double doors locked using aprotected hasp lock provided as a split padlock per the invention ofU.S. Pat. No. 4,548,058;

FIG. 7A illustrates a single door locked with a short, pivotal bar-lockin accordance with a preferred embodiment of the invention;

FIG. 7B shows an enlarged detail of a portion of the door of FIG. 7Alocked with a preferred embodiment of a pivotal bar-lock, constructedand operated in accordance with the principles of the present invention;

FIG. 7C shows a rear, detailed view of the lock shown in FIGS. 7A and7B;

FIG. 7D shows a portion of the door of FIG. 7A with an enlarged,detailed view of the lock mounted thereon in an unlocked condition andpivoted in a halfway open position allowing the door to be opened;

FIG. 7E shows a rear, detailed view of the lock shown in FIG. 7D;

FIG. 7F shows a portion of the door of FIG. 7A with an enlarged,detailed view of a lock mounted thereon in an unlocked and securedposition, enabling the door to be opened;

FIG. 7G shows a rear, detailed view of the lock shown in FIG. 7F;

FIG. 8 shows a prior art locking system for a conventional shippingcontainer based on a pivotal bar-lock with a padlock as in FIGS. 4-5;

FIG. 9 shows a locking system for a conventional shipping container inaccordance with a preferred embodiment of the present invention;

FIG. 10A shows a single, right-hand door, opening outwardly, which islocked using a bar-lock in accordance with an embodiment of the presentinvention,

FIG. 10B shows an enlarged, detailed view of the lock of FIG. 10A with aview of a portion of the door opened and the bar-lock unlocked andsecured in position;

FIG. 11A shows a portion of a single, left-hand door, opening inwardly,which is locked with a bar-lock in accordance with an embodiment of thepresent invention;

FIG. 11B shows a portion of the door of FIG. 11A opened, with thebar-lock unlocked and secured;

FIG. 12 shows a partial cut-away view of a portion of an open, single,right-hand door, opening inwardly, with the bar-lock being pivotedupwardly, unlocked and secured in place;

FIGS. 13A-B show exploded views of a bar-lock in a preferred embodimentof the invention;

FIG. 14 shows an exploded view of an adapter and related mountinghardware used for attaching the locking hasp of FIG. 13 to a glass doorin accordance with the principles of the invention;

FIG. 15 shows an exploded view of an adapter and fasteners for mountingthe bar-lock of FIG. 13 onto an aluminum frame door in accordance withthe principles of the invention;

FIG. 16A is a perspective view of a portion of double glass doors withthe bar-lock of FIG. 13 mounted thereon, using the adapter of FIG. 14;

FIG. 16B is a cross-section view of a glass door mounted with thebar-lock of FIG. 16A seen along the axis of a mounting bolt;

FIG. 17 is a partial cut-away, perspective view of the bar-lock of FIG.13, with the adapter and fasteners shown in FIG. 15, mounted onto thefires of an aluminum frame door in accordance with the principles of theinvention;

FIG. 18 is a perspective view of the bar-lock of FIG. 1-3 weld-mountedonto a right-hand, outwardly opening gate shown in a shut and lockedcondition;

FIG. 19 is a front view of a preferred embodiment of the invention;

FIG. 20 is a vertical, cross-sectional side view taken along sectionline XX-XX of the bar-lock of FIG. 19;

FIG. 21 is a vertical, cross-sectional side view taken along sectionline XXI-XXI of the bar-lock of FIG. 19 in a locked condition andunopened position;

FIG. 22 is a horizontal, cross-sectional top view taken along sectionline XXII-XXII of the bar-lock of FIG. 19;

FIG. 23 is a top view of the bar-lock of FIG. 19;

FIG. 24 is a horizontal, cross-sectional front view taken along sectionline XXIV-XXIV of the bar-lock of FIG. 23;

FIG. 25 is a horizontal, cross-sectional front view taken along sectionline XXV-XXV of the bar-lock of FIG. 23;

FIG. 26 is a horizontal, cross-sectional front view taken along sectionline XXVI-XXVI of the bar-lock of FIG. 23;

FIG. 27 is a top view of the bar-lock of FIG. 19 in a half-openposition;

FIG. 27X is a vertical, cross-sectional view taken along section lineXXXVI-XXXVI of the bar-lock of FIG. 27;

FIG. 28 is a horizontal, cross-sectional front view taken along sectionline XXVIII-XXVIII of the bar-lock of FIG. 27;

FIG. 29 is a horizontal, cross-sectional view taken along section lineXXIX-XXIX of the bar-lock of FIG. 27;

FIG. 30 is a horizontal, cross-sectional view taken along section lineXXX-XXX of the bar-lock of FIG. 27;

FIG. 31 is a front view of a preferred embodiment of the invention withthe barlock in an unlocked and secured position;

FIG. 32 is a horizontal, cross-sectional view taken along section lineXXXII-XXXII of the bar-lock of FIG. 31;

FIG. 33 is a horizontal, cross-sectional view taken along section lineXXXIII-XXXIII of the bar-lock of FIG. 31;

FIG. 34 is a horizontal, cross-sectional view taken along section lineXXXIV-XXXIV of the bar-lock of FIG. 31;

FIG. 35 is a front view of a preferred embodiment of the inventionillustrating the locked position of a bar-lock and showing the positionof an exposed spring and the vector forces applied thereto for resistingunauthorized attempts to open the bar-lock;

FIG. 36 is a front view of the bar-lock from FIG. 35 in a halfway open,unlocked position with an exposed view of the position of a spring;

FIG. 37 is a front view of the bar-lock from FIG. 35, unlocked andsecured in position, with an exposed view of the position of a springand an associated vector diagram indicating the forces acting thereon;

FIG. 38 is a front view of an alignment washer for aligning and joininga first mounting plate with a second mounting plate of a pivotalbar-lock in accordance with an embodiment of the invention;

FIG. 39 is a horizontal, cross-sectional top view taken along sectionline XXXIX-XXXIX of the alignment washer of FIG. 38;

FIG. 40 is a horizontal, cross-sectional top view taken along sectionline XL-XL of the alignment washer of FIG. 38; and

FIG. 41 is an enlarged, exploded view of the alignment washer assemblyof the invention, in a preferred embodiment thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to FIG. 1A there is shown an example of an ancient priorart configuration of fortified, double doors 40 barred with a timbermember 42 which is secured within keepers 44 formed in the stone walls46. In FIGS. 1B and 2-4, there are shown alternative prior artconfigurations of double doors 50 with supporting door posts 52 adaptedto use simple bars 54, 60, 62, 66, and 67, respectively, for securingthe doors in a closed, barred condition. In FIG. 1B, the bar 54 ismounted between the doorposts 52 using bar keepers 58 to hold bar 54securely in place. In FIG. 2, a short bar 60 is mounted across the doors54 and secured in place using bar keepers 58 attached directly to doubledoors 50. In FIG. 3, bar 62 is pivotal about an axis 64 of a bar anchor65 and secured in bar keeper 58, both bar keeper 58 and bar anchor 65being mounted on double doors 50. In FIG. 4, double doors 50 are barredwith a pivotal bar 66 rotatable at axis 64 of bar anchor 65 which ismounted to one of the doors 50. Bar 66 is rotated and secured into barkeeper 59 which is disposed on the second door and adapted to be lockedwith a conventional padlock 68.

FIG. 5 shows an alternative prior art configuration of a single,left-hand, reverse door 70, supported on door posts 52 and locked with apivotal bar 67 rotatable at axis 64 of bar anchor 65 and secured in barkeeper 69 which is adapted to be locked with a padlock 68.

FIG. 6 shows a prior art configuration of a double door 50 adapted touse a pair of prior art locks in the form of a protected hasp lock 72,as described in U.S. Pat. No. 4,548,058, to the present inventor. Hasplock 72 in the lower portion of doors 50 is shown in a locked conditionand the manner for assembly of the major components of hasp lock 72,shown mounted in the upper portion of doors 50, are indicated by thearrows. The lock shackle 74 is inserted into a protective body 78 ofhasp lock 72 at an upper end thereof and engages a padlock body 76inserted from a lower end of protective body 78. Since the parts ofpadlock 72 are inside protective body 78, they are tamper-proof and thepadlock 72 is protected against forced breakage.

Referring now to FIG. 7A, there is illustrated a single, left-hand,reverse door 70 supported on door posts 52, locked with a short, pivotalbar 80 rotatable at axis 64 of bar anchor 57 and secured in bar keeper58 which is attached to one of door posts 52. Pivotal-bar 80 is providedwith an integral bar-lock 82 having a cylinder lock 84 (see detail FIG.7B) in accordance with a preferred embodiment of the invention.

FIG. 7B is an enlarged detail of the door 70 and door post 52 from FIG.7A having a preferred embodiment of a pivotal bar-lock, constructed andoperated in accordance with the principles of the present invention.

Bar-lock 82, in the embodiment of the present invention shown in FIG. 7;comprises the elements: an anchor plate 86, integral to bar anchor 57,configured with a channel 90 having a locked position bay 90 a and anunlocked and secured position bay 90 b formed at opposing ends thereof;pivotal bar 80; cylinder lock 84; and cylinder housing 88 forming anintegral part of bar 80.

FIG. 7C shows a rear, detailed view of the lock from FIGS. 7A and 7B. InFIG. 7C, anchor plate 86 is seen from a rear perspective to be formedintegral to bar anchor 57, and having formed therein an arc-shapedchannel 90, having at one end thereof a locked position bay 90 a and atthe other end thereof, an unlocked and secured position bay 90 b.Locking cam 92 is shown engaged within channel 90, by way of example, inlocked position bay 90 a with bar 80 locked in bar keeper 58.

FIG. 7D is an enlarged, detailed view of door 70 from FIG. 7A showingbar-lock 82 mounted thereon in an unlocked condition and pivoted, asindicated by the curved arrow, in a halfway open position allowing thedoor to be opened. Bar 80 is not locked when locking cam 92 isin-transit between bays 90 a and 90 b.

FIG. 7E shows a rear, detailed view of the lock of FIG. 7D.

Using a key 96 to unlock bar-lock 82 allows pivotal bar 80 to pivot asindicated by the curved arrow around axis 64 of bar anchor 57. Thus, asbar 80 pivots on axis 64 between the unlocked position at bay 90 b andlocked position at bay 90 a, locking cam 92 (visible in FIGS. 7C and 7E)moves in channel 90.

When locking cam 92 is in one of the extreme positions of channel 90, ineither of locked position bay 90 a or unlocked and secured position bay90 b, it can be rotated respectively, to a locked or unlocked positionby use of key 96, which is inserted into cylinder lock 86.

FIG. 7F shows an enlarged, detailed view of door 70 of FIG. 7A, withbar-lock 82 mounted thereon, in an unlocked and secured position,enabling the door to be opened.

FIG. 7G shows a detailed, rear view of the bar-lock of FIG. 7F.

It will thus be appreciated that pivotal bar-lock 82 can be locked inplace both in the locked position while secured in bar anchor 58 and inthe opened and secured position as shown in FIG. 7F. While it is clearlyapparent and essential that pivotal bar-lock 82 be lockable in thelocked position, it may be less apparent why bar-lock 82 should belockable in the open position. However, this is an important feature ofthe invention, as it increases the level of security against accidentalor malicious closure of locking bar 80 on door 70 of a room while peopleare inside.

It can be readily seen that bar-lock 82 is simpler, more convenient, andmore secure to use than the prior art bar-locks described heretofore,since all of its component parts are integrated and the user can operatebar-lock 82 using only key 96, to open and lock it. The presentinvention is thus more useful than a common padlock, which must beremoved and secure the hasp. An unused hasp is subject to abuse and thepresent invention prevents it from being locked by an unauthorizedperson.

Bar-lock 82 is also more secure in use, since it does not use a shackleas in the protected hasp lock of the prior art shown in FIG. 6, and istherefore not vulnerable to attempts to break the lock by using a barcutter to cut the shackle, or a crowbar to pry open the lock.

FIG. 8 shows a prior art locking system for a conventional shippingcontainer. Note that rotatable bar 66 is secured in bar keeper 69 as inFIG. 5 and is adapted to be locked with padlock 68.

FIG. 9 shows a locking system for a conventional shipping container inaccordance with a preferred embodiment of the present invention. Theease of use and security are apparent in contrast to the, prior art lockshown in FIG. 8. Pivotal bar-lock 98 in this embodiment of the inventionis provided with a handle 100 for pivoting it so that the locking cam(not visible) engages stopping bay 90 a or 90 b, and can be locked intoeither position by use of the cylinder lock 140 and a key (not shown).Anchor plate 86 is mounted in a horizontal plane and fixed to a dooraround a vertical, door-locking rod 99 used to lock shipping containers.

FIG. 10A shows a single, left-hand, reverse door, which is locked usinga bar-lock in accordance with an embodiment of the present invention.Door 70 is shown closed and locked with bar-lock 102 which is attachedto door 70 and an adjoining door-post 52.

FIG. 10B shows an enlarged, detailed view of the bar-lock 102 of FIG.10A with a view of a portion of door 70 from FIG. 10A, shown opened, andlocking bar 104 in an unlocked and secured position.

The locking hasp 106 is integrally formed with a keeper 83 for engaginga latching channel 110 formed in latch portion 119. The latch portion119 forms an end of locking bar 104, which, when engaged with keeper 83,prevents sliding type doors fitted and locked with bar-lock 102 frombeing opened or moved. When a bar-lock 102 is installed and locked onswinging type doors, the doors are prevented from opening by the insideface of wall 85 and by abutment with an inner face of mounting plate112.

It should be appreciated that this embodiment of the invention uses anovel, shaped cylinder lock key opening 108 for receiving key 96 tounlock or lock a cylinder lock (not shown) mounted integrally on lockingbar 104. Locking bar 104 is attached to door post 52 via a mountingplate 114 of anchor hasp 155. Locking hasp 106 is attached to door 70 ofFIG. 10A via mounting plate 112 using fasteners 105, such as screws.Fasteners 105 serve as auxiliary mounting hardware until larger sizedbolts 122 are inserted to secure bar-lock 102 onto a mounting surface ofa door or door post. One-way screws, which are not subject tounscrewing, can be employed for initial mounting of bar-lock 102, or thedrives on ordinary auxiliary screws can be destroyed since they are leftin place for convenience and for added security.

FIG. 11A shows a single, right-hand door portion 75, which is lockedshut against door post portion 73 using a bar-lock 102 in accordancewith a preferred embodiment of the present invention FIG. 11B shows thedoor portion 75 of FIG. 11A unlocked and opened, and locking bar 104unlocked and secured in position.

Locking hasp 106 is attached to door post portion 73 through a hexheadbolt 122 inserted in a hole 81 formed in locking hasp 106. Locking bar104 is mounted to door portion 75 using mounting plate 114 and securedwith a fastener 122 (see cut-away in FIG. 12), such as a hexbolt and anut 116. Key 96 is turned a quarter-turn in its slot to unlock bar-lock102 and open door portion 75 inwards as indicated by the curved arrowshown in FIG. 11B. Locking bar 104 rotates when unlocked with key 96 andlatch portion 119 is shown, by way of example, secured in a downwardposition. In other applications, latch portion 119 may be unlocked andsecured in an upward position as shown, by way of example, in FIG. 12.

FIG. 12 shows a partial cut-away view of a portion of a single,left-hand door 69. Door 69 is shown partially opened and locking bar 104is shown pivoted upwardly with an engaging means, such as latch portion119, unlocked and secured in place. Locking hasp 106 is attached to doorpost 128 with a sturdy listener, such as a hardened bolt 126 (Allenhead), as shown in a partial cut-away view. Hardened bolt 126 isinserted through pre-formed hole 81 in keeper 83, enabling use of a muchlarger and sturdier bolt than usual so as to give bar-lock 102 strongerprotection. The locking bar 104 is attached to a portion of door 69 witha hexbolt 122, and locked with lock nut 116.

FIGS. 13A and 13B show respective right and left exploded views of abar-lock in a preferred embodiment of the invention.

Referring to FIG. 13A, the pivotal bar-lock is shown from a rightperspective view and includes the major elements: an anchor hasp 155laterally joined with a locking hasp 106, and a locking bar 104. Alocking washer assembly comprising a locking washer 162, a fastener 160,and a threaded end-cap 164 which is seated flush with the outer faces ofthe first and second mounting plates 114 and 112.

Locking hasp 106 is formed with bar keeper 83 and a convenientpre-formed hole 81 for a fastener 126 for lateral mounting of lockinghasp 106 on a door post of an inward-opening door as in FIGS. 11-12.Another hexbolt 122 is inserted through keeper 83 to extend beyond themounting plate 112 and is secured on its proximal threaded end with awasher and nut (not shown).

Locking bar 104 encases a cylinder lock 140 operable by key 96. Cylinderlock 140 is fitted with a cylinder plug 143 for interacting with alocking cam assembly 150 which rotates with the rotation of cylinderplug 143. This rotation effectuates movement of the cam portion 146 andenables rotation of locking bar 104. Cam portion 146 movement occurs ina locking means, such as that formed within mounting plate 112 (see FIG.26, 30, 34), or, alternatively, such as a channel as in FIGS. 7 and 9.

In the embodiment of the invention shown in FIGS. 13A-B, an engagementmeans, such as latch portion 119 formed in locking bar 104 isillustrated. A spring assembly 131 is disposed within a well 118 whichis oriented in a manner so as to assist in rotating locking bar 104 ineither direction, to a closed or open position, Spring assembly 131comprises: a retaining ring 130, a round cover 120 having a small notch123 on one edge, a small rivet 132 mounted to the inside surface ofcover 120 and attached to spring 136. The other end of spring 136 isattached to a small screw 134 mounted on hub 156.

The shaped key opening 108 (FIG. 13B) of the cylinder lock 140 alsohelps to reduce the size of the opening which makes it more difficultfor an intruder to force open the lock.

Mounting plates 112, 114, when joined together with tightening assembly167 (FIG. 41) in a common plane, serve as a built-in template foraccurate placement and perfect alignment of the drilling holes to mountinventive bar-lock 102 on various types of doors and door posts usingcommon fasteners, such as metal screws, bolts, and the like.

FIG. 13B is a left perspective view of bar-lock 102 revealing furtherconstruction details. Latch portion 119 is formed with a latchingchannel 110. Cam assembly 150 iis formed with a partial circumferentialcollar 177, with the collar being supported on the cylinder lock 140, byway of surface 170, thereby eliminating forced-opening pressure actingon an internal mechanism associated with the cylinder lock 140.Hexagonal recesses 115 and 173, respectively associated with locking hub156 and locking hasp 106, are also shown. Anchor hasp 106 and lockinghasp 155 are each mounted with a single main, massive hexbolt 122. Inthe case of anchor hasp 155, the bolt 122 is coincident with an axisdefining the locking bar 104 rotation. Hexbolts 122 are tamper-resistantby virtue of being seating within respective hexagonal recesses 115 and173 and by virtue of a hardened insert 121. Shaped key opening 108 isformed in hardened wall 107 of locking bar 104.

FIG. 14 shows an exploded view of an adapter 168 and related mountinghardware including gaskets 171, 172 and capnuts 175 used for attachingthe locking hasp and anchor hasp of FIGS. 13A-B to a glass door inaccordance with the principles of the present invention.

FIG. 15 shows an exploded view of adapters 176 and fasteners formounting the bar-lock of FIG. 13 onto an aluminum frame door inaccordance with the present invention.

Because aluminum frame doors generally are extruded or formed in curvedsections, it is difficult to attach a bar-lock to such doors and toassure that there is sufficient contact between adjacent joiningsurfaces. Adapters 176 are shown with two large, hex-head mounting bolts122 for anchoring the adapters 176 to a metal-frame door so as toprovide a surface to which to attach the invention which will providemore contact between the attached parts and, hence, greatly increase thestrength of the attachment. They are secured on the inside of doors withwashers 103 and nuts 116.

FIG. 16A is a perspective view of the bar-lock of FIG. 13 mounted, withthe adapter of FIG. 14, onto the rim of a double glass door shown as aportion thereof. Mounting plates 112, 114 provide a flat, metallicsurface for the attachment of pivotal bar-lock 102 and are thereforeseparated by non-metallic gaskets 171, 172 to prevent damage or marringof the glass doors 178.

FIG. 16B is a cross-section view B-B taken along the axis of mountingbolt 122 of FIG. 16A shown with a portion of a glass door 178 mountedwith bar-lock 102. Non-metallic gasket 172, backup plate 174 and capnuts175 are shown on the other side of the door.

FIG. 17 is a partial cut-away, perspective view of the barlock of FIG.13 mounted, in accordance with the principles of the invention, with theadapters and fasteners shown in FIG. 15, onto aluminum frames of a glassdoor. Adapters 176 provide greater contact surface between adjoiningparts and therefore greater strength and security of attachment.Fasteners, such as metal screws 105 are used to attach the pivotalbar-lock 102 across the aluminum door frames 182. Both exterior andinterior sides of the door frames 182 are fitted with the flangeadapters 176 and secured using a large bolt 122. The adapters 176 aredesigned to strengthen the connection to the aluminum profile.

FIG. 18 is a perspective view of the pivotal bar-lock of FIG. 13featuring an arrangement in which bar-lock 102 is metal weld-mounted (asseen at bead 101) onto a right-hand gate shown shut and locked againstits gate posts. Optionally, the bar-lock 102 is connected to the metalgate 184 and posts 186 using fasteners, such as bolts. The advantage ofwelding a bar-lock 102 to the metal gate 184 is to reduce the number ofparts, to strengthen the bonding, and to save costs.

FIG. 19 is a front view of a preferred embodiment of the invention. Thepivotal bar-lock is illustrated in a locked position. Tool insert notch125 enables insertion of a tool such as a screwdriver for adjusting thetension in spring 136 so that cover 120 remains in place as establishedby the alignment of notch 123 and protrusion 124.

FIG. 20 is a vertical, cross-sectional side view taken along sectionline XX-XX of the bar-lock of FIG. 19. Locking cam assembly 150 is shownseated in aperture 137 of locking bar 104. In addition, roll pin 144 canbe seen seated inside slot 139 of cylinder plug 143, forming therotational connection between the locking cylinder 140 and the camassembly 150.

FIG. 21 is a vertical, cross-sectional side view taken along sectionline XXI-XXI of the bar-lock of FIG. 19. The cross-section reveals thewell 118 enclosing spring 136 fixedly connected to fasteners 132, 134mounted on opposing surfaces within well 118 so as to casue locking bar104 to be spring-loaded, thereby establishing the open and closedpositions.

FIG. 22 is a horizontal, cross-sectional top view taken along sectionline XXII-XXII of the bar-lock of FIG. 19. This view shows the two largehexbolts 122 for mounting pivotal bar-lock 102 to a door. In addition,locking cam assembly 150 is visible, seated on cylinder assembly 140,and rotationally connected to slot 139 of cylinder plug 143. Alsovisible are spring-loaded plunger 148 and spring 152, which engageslocking notch 151 of locking cam 150.

FIG. 23 is a top view of the bar-lock of FIG. 19 shown in a lockedposition.

FIG. 24 is a horizontal, cross-sectional front view taken along sectionline XXIV-XXIV of the bar-lock of FIG. 23. The latching channel 110 oflocking bar 104 is shown engaging the keeper 83 formed integrally withlocking hasp 106. The circumferential collar 177 is shown with surface170 in contact locking cylinder 140. Also visible is stopper 113 whichlimits travel of locking bar 104 when in the open position. of thebar-lock of FIG. 23. Spring loaded plunger 148 and spring 152 engage alocking notch 151 formed on locking cam assembly 150 to produce anaudible click which can also be sensed to positively indicate thelocking and unlocking action of cylinder lock 140 when key-operated.Roll pin 144 can is visible, shown mounted inside locking cam assembly150, which engages slot 139 of cylinder plug 148.

FIG. 26. is a horizontal, cross-sectional front view taken along sectionline XXVI-XXVI of the bar-lock of FIG. 23. The locking cam 146 isrevealed seated in closed position locking bay 192 formed betweenmounting plates 112 and 114. The closed position locking bay 192 and theopen position locking bay 194 are disposed at opposing ends of lockingchannel 191.

FIG. 27 is a top view of the bar-lock of FIG. 19 in the in-transitposition.

FIG. 27X is a vertical, cross-sectional view taken along section lineXXXVI-XXXVI of the bar-lock of FIG. 27. The spring 136 is seen at adifferent angle attached to its supporting fasteners. The locking bar104 is spring-loaded to establish the open and closed positions, andspring 136 additionally assists in maintaining the locking bar 104 onthe anchor hasp 155, preventing accidental removal of the locking bar104 by exerting a pulling force in the direction of vector b.

FIG. 28 is, a horizontal, cross-sectional front view taken along sectionline XXVIII-XXVIII of the bar-lock of FIG. 27. First connecting means138 a and second connecting means 138 b are shown, as well as theclearance “y” between them. The locking bar 104 can be disassembled fromthe anchor hasp 155 for maintenance purposes, when clearance “y” isestablished between the first and second connecting means 138 a and 138b.

FIG. 29 is a horizontal, cross-sectional front view taken along sectionline XXIX-XXIX of the bar-lock of FIG. 27. Spring-loaded plunger 148 canbe seen engaging unlocking notch 159, defining the in-transit positionof locking bar 104.

FIG. 30 is a horizontal, cross-sectional front view taken along sectionline XXX-XXX of the bar-lock of FIG. 27. Illustrated is the in-transitposition of cam 146 along locking channel 191.

FIG. 31 is a top view of a preferred embodiment of the invention withthe bar-lock in an unlocked and secured position.

FIG. 32 is a horizontal, cross-sectional front view taken along sectionline XXXII-XXXII of the bar-lock of FIG. 31. The locking bar 104 isdisposed in a downward orientation, unlocked and secured. Lockingsurface 170 of locking cam assembly 150 is shown in contact with lockingcylinder 140.

FIG. 33 is a horizontal, cross-sectional front view taken along sectionline XXXIII-XXXIII of the bar-lock of FIG. 31. Spring-loaded plunger 148engages locking position notch 151, defining the locked position oflocking cylinder 140.

FIG. 34 is a horizontal, cross-sectional front view taken along sectionline XXXIV-XXXIV of the bar-lock of FIG. 31. Cam 146 is clearly visiblein a secured position engaging open position locking bay 194.

FIGS. 35-37 are front views of a preferred embodiment of the inventionillustrating the forces exerted by spring 136 on locking bar 104, usinga force vector diagram. The illustrations reveal spring 136 via a cutoutportion defined by the dashed line 196. In FIG. 35, the spring 136exerts force c, at offset distance “x”. causing the locking bar 104 torotate into the closed position, as indicated by the curved arrow. Thespring 136 will hold the locking bar 104 in this position until it willbe locked by locking cylinder 140. This enables one-handed operation.

In FIG. 36, spring 136 does not exert any rotational forces on lockingbar 104, while in the in-transit position, because there is no offsetdistance.

In FIG. 37, spring 136 exerts a rotational force in the oppositedirection, to bring locking bar 104 into the unlocked position, byexerting force c, at offset distance “x” in the direction of the curvedarrow.

FIGS. 38-41 are illustrations showing tightening assembly 167 forjoining anchor hasp 155 and locking hasp 106 in a common plane, to serveas a built-in template for complete, accurate, safe and easyinstallation of bar-lock 102.

FIG. 39 is a horizontal, cross-sectional view taken along section lineXXXIX-XXXIX of the tightening assembly 167 of FIG. 38.

FIG. 40 is a horizontal, cross-sectional view taken along section lineXL-XL of the tightening assembly 167 of FIG. 38.

FIG. 41 is an enlarged, exploded view of the tightening assembly 167 ofthe invention.

When bolt 160 is tightened, capnut 164 is drawn inwardly, thus drawingtogether mounting plates 112 and 114 in the direction of the arrows, byaction of sloped recess 165 of capnut 164 against sloped protrusion 169of each of mounting plates 112 and 114. The alignment between mountingplates 112 and 114 is guided by oppositely-situated protrusions 163 oflocking washer 162. Once the alignment is achieved and the mountingtemplate is established, the mounting installation can proceed, afterwhich the tightening assembly 167 is removed.

Having described the invention with regard to certain specificembodiments, it is to be understood that the description is not meant asa limitation, since further modifications may now suggest themselves tothose skilled in the art, and it is intended to cover such modificationsas fall within the scope of the described invention and with referenceto the accompanying drawings.

1. A pivotal bar-lock, comprising: an anchor hasp comprising a lockinghub and a first locking means integrally formed with a first mountingplate; a locking hasp integrally formed with a second mounting plate andhaving a mating element and a second locking means formed therein; and alocking bar rotatably mounted on said anchor hasp, said locking barhaving a cylinder lock encased therein and an engagement means formedtherewith; said cylinder lock being operable such that when rotated intoan unlocked mode, said locking bar is pivotally enabled to assume one ofopen and closed positions in interaction with said first and secondlocking means, and when said cylinder lock is rotated into a lockedmode, said engagement means of said locking bar engages said matingelement of said locking hasp, said bar-lock being constructed withoutseams, protrusions, orifices, and physical features commonly subject toattempts at forced intrusions and open to attack by use of a crowbar,saw, wire cutter, drill and other similar implements, wherein said firstand second locking means comprise a channel having formed therein afirst locking bay defined as a closed position locking bay, and a secondlocking bay defined as an open position locking bay, said first andsecond locking bays being disposed at opposing ends of said channel, andwherein when said locking bar is pivoted to disengage from said matingelement of said locking hasp, a locking cam engages said open positionlocking bay, securing said locking bar in said open position.
 2. Thebar-lock of claim 1, wherein said looking bar is spring-loaded toestablish said open and closed positions, enabling said bar-lock to beoperated with one hand.
 3. The bar-lock of claim 1, wherein said lockinghasp and said anchor hasp are laterally joined in the same plane by atightening assembly to define a mounting template for complete,accurate, safe and easy installation.
 4. The bar-lock of claim 1,wherein said template is designed to accept auxiliary mounting screws toassist in said installation.
 5. The bar-lock of claim 1, wherein saidfirst mounting plate of said anchor hasp and said second mounting plateof said locking hasp are co-planar.
 6. The bar-lock of claim 1, whereinsaid locking hasp has a mounting surface additional to said secondmounting plate, which is not co-planar with said second mounting plate.7. The bar-look of claim 1, wherein said anchor hasp is mounted with asingle main, massive fastening means coincident with an axis definingsaid locking bar rotation, said fastening means being tamper-resistant.8. The bar-lock of claim 1, wherein said locking bar serves as a lockingbolt.
 9. The bar-lock of claim 1, wherein a locking cam engages saidclosed position locking bay when said locking bar is pivoted to engagesaid mating element of said locking hasp, locking said pivotal bar-lock.10. The bar-lock of claim 9, wherein said locking cam is farmed with apartial circumferential collar, said collar being supported on saidcylinder lock, thereby eliminating forced-opening pressure acting on aninternal mechanism associated with said cylinder lock.
 11. The bar-lookof claim 10, wherein said collar is formed with at least one notch whichengages a spring-loaded plunger to define at least one of said open,in-transit and closed positions.
 12. The bar-lock of claim 1, whereinsaid anchor hasp is integrally formed with a first set of connectingmeans, and said locking bar is integrally formed with a second set ofconnecting means, said first and second connecting means being rotatablyinterlocked in said open and closed positions, preventing disassembly ofsaid locking bar from said anchor hasp.
 13. The bar-lock of claim 12,wherein said locking bar can be disassembled from said anchor hasp formaintenance purposes, when said locking bar is in said in-transitposition to enable clearance of said first and second connecting means.14. The bar-lock of claim 12, wherein said locking bar is spring-loadedto establish said open and closed positions, said spring additionallyassisting in maintaining said locking bar on said anchor hasp,preventing accidental removal of said locking bar.
 15. The bar-lock ofclaim 1, wherein said engagement means is provided by a latch portion ofsaid locking bar which is rotatable to engage said mating element ofsaid looking hasp in said closed position, and said cylinder lock isoperable to lock it therein.
 16. The bar-lock of claim 15, wherein saidlatch portion has at least one latching channel.
 17. The bar-lock ofclaim 1, wherein at least one of said anchor hasp and said locking haspis mounted using an adapter means.
 18. The bar-lock of claim 17, whereinsaid adapter means enables mounting said pivotal bar-lock on glassdoors.
 19. The bar-lock of claim 17, wherein said adapter means enablesmounting said pivotal bar-lock on aluminum frame doors.
 20. The bar-lockof claim 17, wherein said adapter means is a metal weld enabling saidpivotal bar-lock to be mounted on a metal frame without fasteners. 21.The bar-lock of claim 1, wherein said cylinder lock is encased in saidlocking bar thereby preventing tampering by drilling, pulling extractor,and breaking with hand tools.
 22. The bar-lock of claim 1, wherein saidanchor hasp and locking hasp are mountable on at least one of a varietyof doors selected from the group of right-hand and left-hand normal andreversible doors, single and double doors, swinging, sliding, folding,accordion-type, and rotating doors.
 23. The bar-lock of claim 22,wherein said doors are constructed of materials selected from at leastone of the group of wood, plastic, metal, and glass.
 24. A method oflocking a door, comprising: providing a pivotal bar lock, comprising: ananchor hasp comprising a locking hub and a first locking meansintegrally formed with a first mounting plate mounted on one of a doorand doorpost; a locking hasp integrally formed with a second mountingplate mounted on the other one of a door and a doorpost, and having amating element and a second locking means formed therein; and a lockingbar rotatably mounted on said anchor hasp, said locking bar having acylinder lock encased therein and an engagement means formed therewith;and operating said cylinder lock such that when rotated into an unlockedmode, said locking bar is pivotally enabled to assume one of open andclosed positions in interaction with said first and second lockingmeans, and when said cylinder lock is rotated into a locked mode, saidengagement means of said locking bar engages said mating element of saidlocking hasp, said bar-lock being constructed without seams,protrusions, orifices, and physical features commonly subject toattempts at forced intrusions and open to attack by use of a crowbar,saw, wire cutter, drill and other similar implements, wherein said firstand second locking means comprise a channel having formed therein afirst locking bay defined as a closed position locking bay, and a secondlocking bay defined as an open position locking bay, said first andsecond locking bays being disposed at opposing ends of said channel, andwherein when said locking bar is pivoted to disengage from said matingelement of said locking hasp, a locking cam engages said open positionlocking bay, securing said locking bar in said open position.